CN102680805A - Wireless digital electric field strength monitoring sensor - Google Patents
Wireless digital electric field strength monitoring sensor Download PDFInfo
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- CN102680805A CN102680805A CN2012101546983A CN201210154698A CN102680805A CN 102680805 A CN102680805 A CN 102680805A CN 2012101546983 A CN2012101546983 A CN 2012101546983A CN 201210154698 A CN201210154698 A CN 201210154698A CN 102680805 A CN102680805 A CN 102680805A
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Abstract
The invention relates to a wireless digital electric field strength monitoring sensor which consists of a shell body, a power supply circuit, an electric field effect element, an amplifier circuit, an impedance conversion circuit, a quantity value judgment circuit, a power supply control circuit, a PCB (Printed Circuit Board), a singlechip computer circuit, a wireless communication module circuit and an antenna, wherein the power supply circuit, the electric field effect element, the amplifier circuit, the impedance conversion circuit, the quantity value judgment circuit, the power supply control circuit, the PCB, the singlechip computer circuit and the wireless communication module circuit are mounted in the shell body, and the antenna is mounted outside the shell body. The wireless digital electric field strength monitoring sensor has the advantages that the monitoring sensor can detect whether high-voltage equipment is charged or not, can detect the voltage level of a charged body, and can realize lightning and surge discrimination.. The monitoring sensor is small in volume and can be mounted on equipment to be detected without influencing the service function of the equipment to be detected; and the monitoring sensor has another advantage of simple structure, and the number of elements in use is less, so that the manufacturing cost of the sensor is reduced.
Description
Technical field
The present invention relates to a kind of electric field intensity monitoring sensor of high-voltage charged body, whether charged especially a kind of wireless type digital electric field intensity monitoring sensor, this device also can be used for carrying out forceful electric power such as power equipment detection and the thunderbolt with electric pressure and invade and detect.
Background technology
At present, when carrying out the electric power apparatus examination operation,, must confirm, thereby guarantee the security of upkeep operation by the WV grade and the electriferous state of maintenance equipment for the degree of protection of confirming the operating area and the voltage degree of protection of inspection operation equipment.The original manual detection method of utilizing HT neon tester is eliminated, and the substitute is the automated detection method of electronic type.In the one Chinese patent application (application number 200610123199.2); A kind of technology that adopts the wireless type electrification in high voltage to detect demonstration and locking has been proposed; But in this technical scheme; Only proposed a kind ofly to detect the whether charged method of high-tension apparatus, and the forceful electric power such as electrified voltage grade and thunderbolt that can not detect high-tension apparatus are invaded and are detected.And that another weak point of this technical scheme is the volume of device is bigger, can not it be installed on the seized equipment, thereby need set up the detection stand for it, has increased cost and the difficulty installed and used.
Summary of the invention
Whether the object of the invention just provides a kind of high-tension apparatus that can detect charged; The electric pressure of electrified body and the differentiation that forceful electric power such as thunderbolt are invaded can be detected again, advantages of small volume, a kind of wireless type digital electric field intensity monitoring sensor on the seized equipment can be installed on.
For realizing above-mentioned purpose, the present invention has adopted following technical scheme:
A kind of wireless type digital electric field intensity monitoring sensor; By housing and be contained in power circuit, field effect element, amplifier circuit, PCB circuit board, single chip circuit and the wireless communication module circuit in the housing and be contained in the outer antenna of housing and constitute, it is characterized in that:
This monitoring sensor of a also is provided with the thunderbolt testing circuit, and its output signal sends single chip circuit to,
B also is provided with impedance inverter circuit and power control circuit between amplifier circuit and single chip circuit.
Said thunderbolt testing circuit is made up of coil, rectifying device and Resistor-Capacitor Unit.
Described impedance inverter circuit is made up of digital integrated circuit device and Resistor-Capacitor Unit thereof.
Described power control circuit is made up of photoelectric device and Resistor-Capacitor Unit thereof.
Whether compared with prior art, the invention has the beneficial effects as follows: provide a kind of high-tension apparatus that can detect charged, the electric pressure that can detect electrified body again also can be exported a kind of wireless type digital electric field intensity monitoring sensor of the voltage fault signal that transfinites.This monitoring sensor advantages of small volume can be installed on the seized equipment it, and does not influence the functions of use of seized equipment, has saved to monitoring sensor is installed and has set up the trouble of stand; Another advantage of this monitoring sensor is simple in structure, uses element few, thereby has reduced the manufacturing cost of device.
Description of drawings
Fig. 1 is the structural representation block diagram of wireless type digital electric field intensity monitoring sensor.
Fig. 2 is the circuit theory diagrams of wireless type digital electric field intensity monitoring sensor.
Fig. 3 is the synoptic diagram of installing and using of wireless type digital electric field intensity monitoring sensor.
Fig. 4 is the testing result synoptic diagram of wireless type digital electric field intensity monitoring sensor.
Embodiment
Referring to Fig. 1; Wireless type digital electric field intensity monitoring sensor of the present invention; By housing 14 and be contained in power circuit 11, value judging circuit 15, field effect element 5, amplifier circuit 6, impedance inverter circuit 7, power control circuit 12, single chip circuit 8 and wireless communication module circuit 9, the PCB circuit board 13 in the housing 14 and be contained in housing 14 outer antennas 10 and constitute; Its concrete structure is: this monitoring sensor has a housing 14, and a PCB circuit board 13 is arranged in the inside of housing 14.On PCB circuit board 13; Be shaped on a Copper Foil induction electrode 5 with corroding method, also be shaped on the used circuit connection of amplifier circuit 6, impedance inverter circuit 7, value judging circuit 15, power control circuit 12, single chip circuit 8, wireless communication module circuit 9 and power circuit 11.All elements that are welded with amplifier circuit 6, impedance inverter circuit 7, value judging circuit 15, power control circuit 12, single chip circuit 8 and wireless communication module circuit 9 are installed on PCB circuit board 13.And antenna 10 and wireless communication module circuit 9 have been contained in the outside of housing 14 after being electrically connected.Wherein, impedance inverter circuit 7 is made up of digital integrated circuit device and Resistor-Capacitor Unit thereof, and power control circuit 12 is made up of photoelectric device and Resistor-Capacitor Unit thereof, and the value judging circuit is made up of Resistor-Capacitor Units such as coil and rectifier bridge and triodes.
The electrical schematic diagram of this monitoring sensor is as shown in Figure 2.In Fig. 2, amplifier circuit 6 is made up of amplifying device MOSC301 and LM324 and potentiometer POT1, resistance R 2, R16 and capacitor C 20; Impedance inverter circuit 7 is made up of MC74HC4051, R3, R7 ~ R15, R18; Power control circuit 12 is made up of photoelectric relay 232EH, R6, R19; Single chip circuit 8 is made up of single chip computer AT MEGA48V, R4, C17, C18, XTAL2; Wireless communication module circuit 9 is made up of radio frequency chip CC1100, XTAL1, R1, C1, C6～C14, L1～L4; Power circuit 11 is made up of lithium battery BT1, R5, C2～C5, C15, C16, LED, and the value judging circuit is by L5, D1 ~ D2, and R20 ~ R24, C21 ~ C25, Q3 constitutes.
The course of work of this monitoring sensor is such:
Externally under the effect of electric field, the electric pressure determination methods is following: field effect element 5 induces electric field signal, and this electric field signal is through the positive input 2 pin input of amplifying device MOSC301; The output signal is by the 3 pin output of MOSC301, and this signal passes through R3 after delivering to operational amplifier LM324 amplification through resistance R 2 again; R7 ~ R15; The R18 voltage division processing is delivered on 18 (ADC5) pin of single chip computer AT MEGA48V, carries out data acquisition and calculating by single-chip microcomputer.The voltage computing formula of its collection is: V
ADC=V
REF*(R3+R7)/R18.Single-chip microcomputer is different according to field intensity under different electric pressure conditions, in advance impedance inverter circuit 7 is carried out the initialization value, then single-chip microcomputer combine (0,220V; 380V, 3KV, 6KV; 10KV, 35KV, 66KV) the different field intensity mathematical models of electric field; Calculate the approximate value of electric field intensity, thereby judge the electriferous state of high-tension apparatus;
The determination methods of thunderbolt and surge voltage is following: when the charging equipment operate as normal, because the separated straight effect of C23, Q3 is in cut-off state.And when thunderbolt or surge voltage, thunderbolt or surge electromagnetic field will induce voltage signal on coil L5, and this signal is added on C21 and the C22 through the D1 rectification, and is added on the base stage of Q3 through C23.Q3 conducting this moment, 31 pin (INT0) the pin level of single chip computer AT MEGA48V changes and produces interruption.At this moment, single-chip microcomputer is gathered and the signal calculated amplitude immediately, and the voltage computing formula of its collection is: V
ADC=V
REF*(R21+R23)/and R22, calculate the sudden change value of voltage, according to the numerical value (V that sets
Surge>=5* WV, during thunderbolt, transition diode D2 conducting V
Thunderbolt=0), and in the regular hour, the voltage of charging equipment revert to normal value again, thereby judges thunderbolt and surge voltage; This information of voltage sends wireless communication module circuit 9 to, and wireless communication module circuit 9 drives its wireless chip CC1100, utilizes wireless mode to launch thunderbolt or surge status information.
The mounting means of wireless type digital electric field intensity monitoring sensor of the present invention is seen shown in Figure 3.In Fig. 3,1 is the sensor after the product encapsulation of the present invention, and 2 is high pressure busbar or lead, and 3 is radio receiver.4 is the fieldbus of receiving trap.During sensor 1 work; Regularly send the whether charged wireless signal of high pressure busbar or lead 2; After receiving trap is received the electriferous state signal of wireless transmission; Utilize means prompting constructing operation personnel such as acousto-optic demonstration, inform the present electriferous state of seized equipment and the situation of circuit generation surge and thunderbolt.
Wireless type digital electric field intensity monitoring sensor of the present invention can detect the electriferous state of the consumer of 0～66KV.The data result that one embodiment of the present of invention detect is as shown in Figure 4.From the table of Fig. 4, can find out; Have at seized equipment under the situation of electricity; The detection error of wireless type digital electric field intensity monitoring sensor of the present invention is about 10%; Can demarcate the electric pressure of power industry standard fully, also can indicate the whether charged state of circuit fully, also can realize differentiation simultaneously thunderbolt or surge voltage.
Claims (6)
1. wireless type digital electric field intensity monitoring sensor; By housing and be contained in power circuit, field effect element, amplifier circuit, PCB circuit board, single chip circuit and the wireless communication module circuit in the housing and be contained in the outer antenna of housing and constitute, it is characterized in that:
This monitoring sensor of a also is provided with the thunderbolt testing circuit, and its output signal sends single chip circuit to,
B also is provided with impedance inverter circuit and power control circuit between amplifier circuit and single chip circuit.
2. wireless type digital electric field intensity monitoring sensor according to claim 1, it is characterized in that: described impedance inverter circuit is made up of digital integrated circuit device and Resistor-Capacitor Unit thereof.
3. wireless type digital electric field intensity monitoring sensor according to claim 1, it is characterized in that: described power control circuit is made up of photoelectric device and Resistor-Capacitor Unit thereof.
4. wireless type digital electric field intensity monitoring sensor according to claim 1 is characterized in that: described value judging circuit is made up of coil and rectification circuit and Resistor-Capacitor Unit.
5. wireless type digital electric field intensity monitoring sensor according to claim 2, it is characterized in that: described power control circuit is made up of photoelectric device and Resistor-Capacitor Unit thereof.
6. wireless type digital electric field intensity monitoring sensor according to claim 3, it is characterized in that: described impedance inverter circuit is made up of digital integrated circuit device and Resistor-Capacitor Unit thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101546983A CN102680805A (en) | 2012-05-17 | 2012-05-17 | Wireless digital electric field strength monitoring sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101546983A CN102680805A (en) | 2012-05-17 | 2012-05-17 | Wireless digital electric field strength monitoring sensor |
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| CN102680805A true CN102680805A (en) | 2012-09-19 |
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| CN2012101546983A Pending CN102680805A (en) | 2012-05-17 | 2012-05-17 | Wireless digital electric field strength monitoring sensor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954848A (en) * | 2014-04-21 | 2014-07-30 | 国家电网公司 | Portable field strength measurement device and field strength measurement method based on DSP and FPGA |
| CN111999567A (en) * | 2020-08-28 | 2020-11-27 | 上海商米科技集团股份有限公司 | Radiation emission RE test equipment and test method |
| CN113346926A (en) * | 2020-03-02 | 2021-09-03 | 诺基亚技术有限公司 | Transmission and/or reception of radio signals |
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| JP2000221219A (en) * | 1999-02-02 | 2000-08-11 | Hasegawa Denki Kogyo Kk | Noncontact type detector for d.c. high voltage |
| JP2001208781A (en) * | 2000-01-31 | 2001-08-03 | Hasegawa Denki Kogyo Kk | Dc electroscope |
| CN2692679Y (en) * | 2003-08-07 | 2005-04-13 | 西安福润德电子科技有限公司 | Digital high-voltage acoustooptical electroscope |
| CN2828826Y (en) * | 2004-11-15 | 2006-10-18 | 深圳市康普盾电子科技有限公司 | Lightning current inductor |
| CN2854618Y (en) * | 2005-12-15 | 2007-01-03 | 马海明 | Remote testing equipment for high voltage transmission line strucked by lightning |
| CN101303386A (en) * | 2007-05-11 | 2008-11-12 | 河海大学常州校区 | Sensor device for detecting high voltage circuit electrical parameter |
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2012
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000221219A (en) * | 1999-02-02 | 2000-08-11 | Hasegawa Denki Kogyo Kk | Noncontact type detector for d.c. high voltage |
| JP2001208781A (en) * | 2000-01-31 | 2001-08-03 | Hasegawa Denki Kogyo Kk | Dc electroscope |
| CN2692679Y (en) * | 2003-08-07 | 2005-04-13 | 西安福润德电子科技有限公司 | Digital high-voltage acoustooptical electroscope |
| CN2828826Y (en) * | 2004-11-15 | 2006-10-18 | 深圳市康普盾电子科技有限公司 | Lightning current inductor |
| CN2854618Y (en) * | 2005-12-15 | 2007-01-03 | 马海明 | Remote testing equipment for high voltage transmission line strucked by lightning |
| CN101303386A (en) * | 2007-05-11 | 2008-11-12 | 河海大学常州校区 | Sensor device for detecting high voltage circuit electrical parameter |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954848A (en) * | 2014-04-21 | 2014-07-30 | 国家电网公司 | Portable field strength measurement device and field strength measurement method based on DSP and FPGA |
| CN103954848B (en) * | 2014-04-21 | 2015-12-30 | 国家电网公司 | Based on portable field intensity measurement mechanism and the method for DSP and FPGA |
| CN113346926A (en) * | 2020-03-02 | 2021-09-03 | 诺基亚技术有限公司 | Transmission and/or reception of radio signals |
| US11527831B2 (en) | 2020-03-02 | 2022-12-13 | Nokia Technologies Oy | Transmission and/or reception of radio signals |
| CN111999567A (en) * | 2020-08-28 | 2020-11-27 | 上海商米科技集团股份有限公司 | Radiation emission RE test equipment and test method |
| CN111999567B (en) * | 2020-08-28 | 2023-03-24 | 上海商米科技集团股份有限公司 | Radiation emission RE test equipment and test method |
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Application publication date: 20120919 |